What are the cheapest airlines to fly from District of Columbia to Idaho one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $108. Alaska Airlines flights start at $139 while deals on Hawaiian Airlines start at $148 one-way.

How far in advance should I book a flight from District of Columbia to Idaho?

To save up to 87% on this flight, we recommend booking at least 26 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from District of Columbia to Idaho from $245 1-2 weeks out and tickets from $398 for flights departing within the next 72 hours.

What is the cheapest month to fly from District of Columbia to Idaho?

April is one of the best times of the year to fly to Idaho from District of Columbia. Prices for April average $455 per person but you can even find prices for as low as $212. The most expensive prices can be found in the month of December. Opting for a April flight can save you 56% on your journey compared to booking in December

Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?

Yes. In addition to deals on District of Columbia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from District of Columbia to Idaho?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Idaho.

Can I find deals for business class flights from District of Columbia to Idaho?

Yes. Cheapflights offers flight deals from District of Columbia to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$108+ Flights from District of Columbia to Idaho - Compare & Save Big

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Cheap flight deals from District of Columbia to Idaho

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$218 (Booking.com)
One-way from	$108 (Cheapflightsfares)
Popular in	December
Cheapest in	April
Average price	$304

Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.

Search Deals

From District of Columbia to Idaho

Search Deals

One-way flight from District of Columbia to Idaho

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($82 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Find flight deals from District of Columbia to Idaho

Cheapest flights from District of Columbia to Idaho
Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Wed 5/141:00 pmDCA - BOI

1 stop26h 37mFrontier

Sun 5/182:27 pmBOI - DCA

1 stop29h 32mFrontier

Deal found 4/29

$218

Tue 7/85:59 pmDCA - GEG

1 stop8h 39mDelta

Fri 7/2511:41 amGEG - DCA

1 stop8h 53mDelta

Deal found 4/29

$297

Tue 7/86:00 amIAD - GEG

1 stop8h 11mDelta

Tue 7/2211:10 pmGEG - IAD

1 stop7h 00mDelta

Deal found 4/28

$297

Thu 5/299:00 amIAD - BOI

1 stop8h 55mAlaska Airlines

Wed 6/1112:54 pmBOI - IAD

1 stop15h 01mAlaska Airlines

Deal found 4/28

$300

Sat 9/206:35 amIAD - BOI

1 stop9h 14mUnited Airlines

Sat 9/277:00 amBOI - IAD

1 stop6h 32mUnited Airlines

Deal found 4/29

$301

Wed 6/47:00 amDCA - BOI

1 stop8h 50mUnited Airlines

Sat 6/710:45 amBOI - DCA

1 stop8h 42mUnited Airlines

Deal found 4/29

$301

Thu 5/295:24 pmIAD - BOI

2 stops8h 58mDelta

Thu 6/57:49 pmBOI - IAD

1 stop8h 03mDelta

Deal found 4/29

$306

Wed 6/46:00 amDCA - BOI

2 stops7h 54mDelta

Sat 6/71:18 pmBOI - DCA

1 stop8h 25mDelta

Deal found 4/29

$306

Thu 6/57:00 amDCA - GEG

1 stop7h 03mFrontier

Thu 6/1211:58 amGEG - DCA

1 stop7h 01mFrontier

Deal found 4/29

$311

Wed 6/49:00 amIAD - GEG

1 stop8h 22mAlaska Airlines

Wed 6/1110:45 amGEG - IAD

2 stops16h 10mAlaska Airlines

Deal found 4/29

$312

Mon 5/52:32 pmIAD - GEG

1 stop12h 06mUnited Airlines

Wed 5/145:29 amGEG - IAD

1 stop7h 07mUnited Airlines

Deal found 4/28

$314

Tue 6/35:00 pmDCA - GEG

1 stop8h 25mAlaska Airlines

Wed 6/1110:45 amGEG - DCA

1 stop8h 14mAlaska Airlines

Deal found 4/29

$319

Best flights from District of Columbia to Idaho
Discover carefully curated flight deals from District of Columbia to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Wed 5/141:00 pmDCA - BOI

1 stop26h 37mFrontier

Sun 5/182:27 pmBOI - DCA

1 stop29h 32mFrontier

Deal found 4/29

$218

Tue 7/83:59 pmDCA - GEG

1 stop9h 01mDelta

Tue 7/2211:10 pmGEG - DCA

1 stop6h 59mDelta

Deal found 4/28

$297

Thu 5/299:00 amIAD - BOI

1 stop8h 55mAlaska Airlines

Wed 6/1112:54 pmBOI - IAD

1 stop15h 01mAlaska Airlines

Deal found 4/28

$300

Mon 5/266:48 amIAD - BOI

1 stop6h 55mUnited Airlines

Mon 6/27:07 pmBOI - IAD

1 stop8h 01mUnited Airlines

Deal found 4/28

$301

Sat 5/106:30 amIAD - BOI

1 stop9h 17mHawaiian Airlines

Tue 5/278:59 pmBOI - IAD

1 stop8h 37mHawaiian Airlines

Deal found 4/29

$329

Mon 5/195:14 pmIAD - GEG

1 stop9h 33mMultiple Airlines

Sun 5/256:00 amGEG - IAD

1 stop8h 15mMultiple Airlines

Deal found 4/28

$333

Wed 6/185:08 amDCA - BOI

1 stop7h 48mAmerican Airlines

Sat 6/213:35 pmBOI - DCA

1 stop7h 16mAmerican Airlines

Deal found 4/29

$336

Sat 8/235:05 pmIAD - BOI

1 stop6h 35mSouthwest

Wed 8/278:45 amBOI - IAD

2 stops11h 20mSouthwest

Deal found 4/28

$351

Thu 6/1912:46 pmIAD - BOI

1 stop8h 40mSun Country Air

Sun 6/227:20 pmBOI - IAD

1 stop14h 59mSun Country Air

Deal found 4/28

$425

Tue 7/86:00 amIAD - GEG

1 stop8h 11mDelta

Tue 7/2211:10 pmGEG - IAD

1 stop7h 00mDelta

Deal found 4/28

$297

Thu 6/57:00 amDCA - GEG

1 stop7h 03mFrontier

Thu 6/1211:58 amGEG - DCA

1 stop7h 01mFrontier

Deal found 4/29

$311

Wed 6/49:00 amIAD - GEG

1 stop8h 22mAlaska Airlines

Wed 6/1110:45 amGEG - IAD

2 stops16h 10mAlaska Airlines

Deal found 4/29

$312

Last-minute flights from District of Columbia to Idaho
Discover last-minute flight deals from District of Columbia to Idaho. Data last updated April 29, 2025 and is based on user searches.

Mon 5/56:30 amIAD - BOI

1 stop9h 17mAlaska Airlines

Tue 5/132:41 pmBOI - IAD

1 stop7h 17mAlaska Airlines

Deal found 4/28

$256

Mon 5/53:30 pmDCA - BOI

1 stop9h 15mUnited Airlines

Wed 5/1411:02 amBOI - DCA

1 stop8h 32mUnited Airlines

Deal found 4/28

$301

Mon 5/52:32 pmIAD - GEG

1 stop12h 06mUnited Airlines

Wed 5/145:29 amGEG - IAD

1 stop7h 07mUnited Airlines

Deal found 4/28

$314

Mon 5/55:38 pmDCA - GEG

1 stop8h 26mAlaska Airlines

Tue 5/137:00 amGEG - DCA

1 stop10h 58mAlaska Airlines

Deal found 4/28

$343

Mon 5/57:00 amIAD - GEG

1 stop9h 33mAlaska Airlines

Fri 5/165:25 pmGEG - IAD

1 stop9h 30mAlaska Airlines

Deal found 4/28

$343

Mon 5/55:38 pmDCA - GEG

1 stop8h 26mHawaiian Airlines

Thu 5/87:00 amGEG - DCA

1 stop10h 58mHawaiian Airlines

Deal found 4/28

$346

Mon 5/57:00 amDCA - GEG

1 stop10h 41mUnited Airlines

Wed 5/145:29 amGEG - DCA

1 stop6h 33mUnited Airlines

Deal found 4/28

$397

Tue 5/612:45 pmIAD - BOI

1 stop7h 15mUnited Airlines

Mon 5/125:00 amBOI - IAD

1 stop6h 25mUnited Airlines

Deal found 4/28

$301

Tue 5/68:00 amDCA - BOI

1 stop10h 55mAlaska Airlines

Wed 5/149:18 amBOI - DCA

1 stop10h 41mAlaska Airlines

Deal found 4/28

$345

Tue 5/610:20 amDCA - BOI

1 stop8h 20mAmerican Airlines

Mon 5/121:38 pmBOI - DCA

1 stop7h 26mAmerican Airlines

Deal found 4/28

$401

Tue 5/62:50 pmIAD - GEG

2 stops11h 25mSouthwest

Fri 5/96:35 amGEG - IAD

2 stops13h 05mSouthwest

Deal found 4/28

$607

Fri 5/910:00 pmDCA - JAC

2 stops16h 06mAmerican Airlines

Tue 5/133:02 pmJAC - DCA

2 stops14h 36mAmerican Airlines

Deal found 4/29

$618

One-way flights from District of Columbia to Idaho
Search for one-way flight options from District of Columbia to Idaho. Find affordable one-way fares based on user searches. Data last updated April 29, 2025.

Thu 5/297:00 amDCA - BOI

1 stop6h 51mFrontier

Deal found 4/29

$108

Sat 5/246:00 pmDCA - GEG

1 stop20h 04mFrontier

Deal found 4/29

$126

Wed 7/238:10 amIAD - GEG

1 stop10h 57mAlaska Airlines

Deal found 4/27

$139

Sat 8/165:02 pmDCA - GEG

1 stop8h 54mHawaiian Airlines

Deal found 4/29

$148

Sat 7/267:50 amDCA - GEG

1 stop8h 27mDelta

Deal found 4/29

$149

Sun 5/44:00 pmIAD - GEG

1 stop10h 38mUnited Airlines

Deal found 4/27

$149

Tue 5/66:30 amIAD - BOI

1 stop9h 17mAlaska Airlines

Deal found 4/29

$150

Tue 5/68:00 amDCA - BOI

1 stop7h 47mAlaska Airlines

Deal found 4/29

$150

Mon 9/155:06 pmDCA - JAC

1 stop20h 53mAlaska Airlines

Deal found 4/28

$151

Sun 9/146:25 amDCA - BOI

1 stop7h 06mUnited Airlines

Deal found 4/29

$151

Sat 7/265:23 pmIAD - GEG

2 stops8h 49mDelta

Deal found 4/28

$154

Thu 5/296:00 amIAD - BOI

2 stops9h 46mDelta

Deal found 4/29

$156

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 5/14

1:00 pm-1:37 pm

1 stop26h 37m

Boise Air Term. Gowen Fld

Sun 5/18

2:27 pm-9:59 pm

1 stop29h 32m

$218

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Tue 7/8

5:59 pm-11:38 pm

1 stop8h 39m

Spokane

Wed 7/23

11:41 am-11:34 pm

1 stop8h 53m

$297

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Tue 7/8

3:30 pm-10:00 pm

1 stop9h 30m

Spokane

Tue 7/22

7:26 pm-5:57 am

1 stop7h 31m

$297

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 5/29

9:00 am-3:55 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

Wed 6/11

12:54 pm-5:55 am

1 stop15h 01m

$300

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 6/4

7:00 am-1:50 pm

1 stop8h 50m

Boise Air Term. Gowen Fld

Sat 6/7

10:45 am-9:27 pm

1 stop8h 42m

$301

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 5/29

7:05 am-12:08 pm

1 stop7h 03m

Boise Air Term. Gowen Fld

Thu 6/5

7:49 pm-5:52 am

1 stop8h 03m

$301

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 6/4

6:00 am-11:54 am

2 stops7h 54m

Boise Air Term. Gowen Fld

Sat 6/7

1:18 pm-11:43 pm

1 stop8h 25m

$306

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Thu 6/5

7:00 am-11:03 am

1 stop7h 03m

Spokane

Thu 6/12

11:58 am-9:59 pm

1 stop7h 01m

$311

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Wed 6/4

9:00 am-2:22 pm

1 stop8h 22m

Spokane

Wed 6/11

10:45 am-5:55 am

2 stops16h 10m

$312

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 6/5

6:48 am-11:43 am

1 stop6h 55m

Boise Air Term. Gowen Fld

Sun 6/8

7:07 pm-5:08 am

1 stop8h 01m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results

...

Best time to book a flight from District of Columbia to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from District of Columbia with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Idaho

What is the cheapest month to book a flight from District of Columbia to Idaho?

Currently, October is the cheapest month in which you can book a flight from District of Columbia to Idaho (average of $314). Flying from District of Columbia to Idaho in June is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to ID?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Idaho as you normally would.

Rainfall in Idaho by month

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from District of Columbia to Idaho to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,968 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,295 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,936 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,402 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines to fly from District of Columbia to Idaho one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $108. Alaska Airlines flights start at $139 while deals on Hawaiian Airlines start at $148 one-way.
Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?
Yes. In addition to deals on District of Columbia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Idaho?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Idaho.
Can I find deals for business class flights from District of Columbia to Idaho?
Yes. Cheapflights offers flight deals from District of Columbia to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from District of Columbia to Idaho?
Currently, October is the cheapest month in which you can book a flight from District of Columbia to Idaho (average of $314). Flying from District of Columbia to Idaho in June is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from District of Columbia to Idaho

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$230	Average$485	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$230	Average$509	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$274	Average$567	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$298	Average$652	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$334	Average$615	FlexibilityNo cancel fee	On-time71%

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$108+ Cheap flights from District of Columbia to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Idaho with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from District of Columbia to Idaho

Keep the following information in mind while searching for District of Columbia to Idaho flight deals. Data was last updated April 29, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from District of Columbia to Idaho

Cheapest flights from District of Columbia to IdahoExplore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Idaho that are best for you.

Best time to book a flight from District of Columbia to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from District of Columbia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Idaho

What is the cheapest month to book a flight from District of Columbia to Idaho?

What is the cheapest time of day to fly from DC to ID?

Find hourly flight availability from District of Columbia to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated April 29, 2025.

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from District of Columbia to Idaho to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from District of Columbia to Idaho one-way?

Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?

How can I find direct flights from District of Columbia to Idaho?

Can I find deals for business class flights from District of Columbia to Idaho?

What is the cheapest month to book a flight from District of Columbia to Idaho?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from District of Columbia to Idaho

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Cheapest flights from District of Columbia to Idaho
Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.